App DescriptionCountless math to calculate to the sum of 16 out of your head!
This app is able to assign themselves countless amounts of time at different times, no sum â€‹â€‹remains the same, not even in the same place.
Each scene is different!
Drag the answer to the sum.
Good answer? You hear a tone and see stars twinkle, you have solved a part of the picture.
Wrong answer? The outcome rushes back to his place.
There are several beautiful pictures!
This app has no time limit!
Practice as much and as often as you wantâ€¦
In no time you are the math engine of the first grade!
For use at home and school.
March 07, 2014 New version 1.2
February 06, 2014 Price Decrease: $1.99 -> $0.99
January 31, 2014 New version 1.1
November 16, 2013 Initial Release